PROBLEM TO BE SOLVED: To provide a cutting device and a phacoemulsification suction device.SOLUTION: The cutting device has a base support section for attachment with a movement generating device and a tip with a blade section. The blade section preferably has upper and lower edges, and a forward aspiration free edge extending between them, with the upper edge having a shorter longitudinal length compared with the lower edge and where the forward edge slopes down from a distal end of the upper edge to a distal end of the lower edge, and the lower edge presenting a material contact surface that is thinner in thickness than the upper edge. A slope back in the proximal direction of the forward edge of, for example, 10 to 45 degrees with a straight and/or curving forward edge or a combination of a straight and forward edge sections is preferred. The blade converges in thickness from top to bottom, one having a curved upper forward edge region and the other having a lower edge that has a distal straight section and a recessed section positioned proximal of the distal straight section. The forward edge further includes longitudinally-diverging opposing sidewalls.COPYRIGHT: (C)2013,JPO&INPIT
